<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <style>
        * {
            padding: 0;
            margin: 0;
        }

        html {
            font-size: 24.154589371980677vw;
        }

        body {
            font-size: 0.16rem;
        }

        .main {
            width: 4.14rem;
            height: 1rem;
            background-color: red;
        }
    </style>
</head>
<body>
<div class="main">11</div>
</body>
</html>
